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Changes in Simultaneous Liver Kidney Transplant Allocation Policy May Impact Post Liver Transplant Outcomes
Published Web Location
https://doi.org/10.1097/tp.0000000000002403Abstract
Background
Previous simultaneous liver-kidney (SLK) transplant allocation was based on serum creatinine, a metric that disadvantaged women relative to men. A recent SLK transplant policy change uses estimated glomerular filtration rate (eGFR), which accounts for sex-based differences in creatinine.Methods
To understand the impact of this new policy, we analyzed nonstatus 1 adults listed for liver transplantation (LT) from May 2007 to July 2014, excluding those with exceptions. We defined patients who met the new SLK policy as having an eGFR <60 mL/min for 90 days, with a final eGFR <30 mL/min.Results
Of 40979 candidates, 1683 would have met only the new criteria (N-SLK), 2452 would have met only the old criteria (O-SLK), and 1878 would have met both criteria (B-SLK). Compared to those in the B-SLK or O-SLK groups, those in the N-SLK group were significantly more likely to be female (52% versus 36% versus 39%, P < 0.001). Cox-regression analysis demonstrated that in adjusted analysis those in the N-SLK group were significantly less likely to die postliver transplant (hazard ratio [HR], 0.0; P < 0.001). Further, in Cox regression subgroup analyses, both in women (HR 0.04; P < 0.001) and in men (HR, 0.02, P < 0.001) those in the N-SLK group who underwent liver transplant were significantly less likely to die postliver transplant, even after adjustment for confounders.Conclusions
We anticipate that implementation of the new SLK policy will increase the proportion of women and decrease the proportion of men who are listed for SLK but may not improve posttransplant survival. Our data highlight the need for monitoring of SLK outcomes after implementation of the new policy.Many UC-authored scholarly publications are freely available on this site because of the UC's open access policies. Let us know how this access is important for you.
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